aa.js

非常简单的JavaScript练习例子 简单的验证

var youjifei=0,huokuan=0,totalfei=0;
function isnumber(theinput)
{
   for(var i=0;i<theinput.length;i++)
   {
      var isnum=theinput.substring(i,i+1);
      if(isnum<"0"||isnum>"9")
      {
         alert("请输入数字!!!")
         return false;
      }
      else
      {
        return true;
      }
   }
}


function choosephoto()
{
  if(menu.photoshop.checked==true)
  {
    var inputprint=prompt("请输入订购的数量");
  }
  if(inputprint==""||inputprint=="undefined"||inputprint==null)
      {
         menu.photoshop.checked=false;
         alert("请输入数据!!!");
         return false;
      }
      else
      {
        if(isnumber(inputprint)==true)
        {
           if(confirm("单价:25元\n订购数量:"+inputprint+"\n货款合计为:"+eval(25*eval(inputprint))+"\n邮寄费为:"+eval(eval(25*eval(inputprint))*0.1)))
           {
              menu.photoshop.value=inputprint;
              youjifei+=eval(25*eval(inputprint))*0.1;
              huokuan+=eval(25*eval(inputprint));
              parent.main.document.order.S1.value+="\nphotoshop6.0        数量:"+inputprint+"\n";
              parent.main.document.order.fei.value=youjifei;
              parent.main.document.order.trade.value=huokuan;
              parent.main.document.order.total.value=eval(parent.main.document.order.trade.value)+eval(parent.main.document.order.fei.value);
              return true;
           }
           else
           {
              menu.photoshop.checked=false;
              menu.photoshop.value="";
           }
        }
      
    }
}  
function chooseprint()
{
   if(menu.print.checked==true)
   {
      var input=prompt("请输入订购的数量");
      if(input==""||input=="undefined"||input==null)
      {
         menu.print.checked=false;
         alert("请输入数据!!!");
         return false;
      }
      else
      {
        if(isnumber(input)==true)
        {
           if(confirm("单价:5000元\n订购数量:"+input+"\n货款合计为:"+eval(5000*eval(input))+"\n邮寄费为:"+eval(eval(5000*eval(input))*0.01)))
           {
              menu.print.value=input;
              youjifei+=eval(5000*eval(input))*0.01;
              huokuan+=eval(5000*eval(input));
              parent.main.document.order.S1.value+="\nLM-AS打印机         数量:"+input+"\n";
              parent.main.document.order.fei.value=youjifei;
              parent.main.document.order.trade.value=huokuan;
              parent.main.document.order.total.value=eval(parent.main.document.order.trade.value)+eval(parent.main.document.order.fei.value);
              return true;
           }
           else
           {
              menu.print.checked=false;
              menu.print.value="";
           }
        }
      }
    }
}
function choosemorden()
{
   if(menu.print.checked==true)
   {
      var input=prompt("请输入订购的数量");
      if(input==""||input=="undefined"||input==null)
      {
         menu.morden.checked=false;
         alert("请输入数据!!!");
         return false;
      }
      else
      {
        if(isnumber(input)==true)
         {
           if(confirm("单价:200元\n订货数量:"+input+"\n货款合计为:"+eval(200*eval(input))+"\n邮件费为:"+eval(eval(200*eval(input))*0.01)))
           {
              menu.morden.value=input;
              youjifei+=eval(200*eval(input))*0.01;
              huokuan+=eval(200*eval(input));
              parent.main.document.order.S1.value+="\n全向激光morden    数量:"+input+"\n";
           
             
              parent.main.document.order.fei.value=youjifei;
              parent.main.document.order.trade.value=huokuan;
              parent.main.document.order.total.value=eval(parent.main.document.order.trade.value)+eval(parent.main.document.order.fei.value);
              return true;
           }
           else
           {
              menu.morden.checked=false;
              menu.morden.value="";
           }
         }
         
      }
   }
}